Free Rulebook App, Tournament Mandatory Play Highlight Updates and Rule Changes for 2023 Little League® Season - Little League
MLB changes 2023: New rules include pitch clock, shift, bigger bases
2023 MLB Rule Changes
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2023 MLB rule changes - Pitch clock, end of shift and more - ESPN
New baseball rules for 2023 FAQ
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MLB new rule changes: Everything you need to know - Sports Illustrated
2023 MLB Rule Changes